SoftSpun Square 52" x 52" Table Linens are composed out of 100% Spun Polyester. Spun Polyester has stronger durability over a normal polyester fabric that's an alternative. Spun polyester should last through 300 washings. Numerous washing do not fade the fabric and will produce an even softer feel to the touch. Spun Polyester also has features quite a bit better absorbability than 100% polyester napkins.